While I was walking the grounds, I spotted Peter Capaldi shopping (well, perusing...) at a booth and snapped a few photos. He seemed fairly impressed with their options and the booth owners were happy to see him.

Here are some more photos from the first day:

Here's a quick walkthrough of the main autograph area when first entering:

Below is a video of the beginning of Thomas Ian Nicholas' set - More videos will be uploaded later of him playing with David Alpay and Ryan Cabrera from the front of the stage.